Matter | Whole Class
In this 20-minute whole-class lesson, adult learners review how matter is classified, measured, and changed in Earth science contexts such as rocks, water, air, and soil. Students connect particle behavior to observable properties and real-world processes.
| Term | Definition |
|---|---|
| Matter | Anything that has mass and takes up space. |
| Mass | The amount of matter in an object. |
| Volume | The amount of space matter occupies. |
| Physical property | A characteristic that can be observed or measured without changing the substance. |
| Chemical property | A characteristic that describes how a substance can change into a new substance. |
| State of matter | The physical form of matter, such as solid, liquid, or gas. |
| Density | Mass per unit volume; how tightly matter is packed together. |
| Phase change | A change from one state of matter to another due to energy gain or loss. |
Show images of a rock, a puddle, soil, and clouds. Ask: Which are matter? What evidence proves it? Record responses.
Identify examples, explain that each has mass and occupies space, and share prior knowledge.
Define matter, mass, volume, and states of matter. Connect particle motion to solids, liquids, and gases. Briefly distinguish physical and chemical properties using Earth science examples such as rock hardness, water density, and oxidation of minerals.
Take notes, answer targeted questions, and compare examples to vocabulary definitions.
Present three quick scenarios: melting snow, erosion of rock, and water vapor condensing on a cold surface. Ask students to classify each as a state change, physical change, or chemical change and justify their reasoning.
Discuss in whole class, use evidence-based language, and defend answers with vocabulary terms.
Prompt learners to explain how temperature or pressure changes matter in one Earth process, such as weather, rock formation, or groundwater movement.
Respond verbally or in brief written form using at least two vocabulary terms.
Collect an exit ticket: define matter and give one Earth science example plus one property or change. Review for understanding.
Complete exit ticket independently and submit before leaving.
Reinforce that Earth science studies matter in many forms and that changes in energy, temperature, and pressure help explain natural processes. Highlight one strong student response that used vocabulary accurately.
Formative assessment will be based on participation in guided discussion and the exit ticket, which measures the ability to define matter and apply vocabulary to an Earth science example.
Find one Earth science process at home, outdoors, or in the news that involves matter changing state or properties. Write 3-5 sentences explaining the process and identify at least two vocabulary terms from class.